Coke-oven



(No Model.)

. W. B. SMITH;

00KB OVEN.

No. 258,489. Patented May 23, I882.

UNTTED STATES PATENT ()FFICEO WILLIAM B. SMITH, OF ANNISTON, ALABAMA.

COKE- OVEN.

SPECIFICATION forming part of Letters Patent No. 258,489, dated May 23, 1882.

Application filed November 2, 1881.

To all whom it may concern:

Be it known that I, WM. B. SMITH, a citizen of Alabama, residin gat Anniston, in the county of Calhoun and State of Alabama, have invented certain new and useful Improvements in Coke-Ovens; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The present invention relates to ovens for coking mineral coal; and the object thereof is to provide simple and effective means for desulphurizing the coke, whereby the latter is better adapted for use in metallurgical furnaces and the iron or productobtained from the same is of a superior quality.

To these ends the invention consists in a coke-oven of any desired form or construction, which is traversed by a system of horizontal tubes that serve for the circulation of water and air through the-same. The products of combustion in the oven will tend to generate a suiiicient amount of steam in thetubes, which escapes through openings in the upper side of said tubes, and is readily decomposed in the oven, furnishing hydrogen and oxygen, that combine with the sulphur in the coal and carry it off.

In the drawings, Figure 1 is a vertical sectional view of a coke-oven having my invention applied thereto. Fig. 2 is a horizontal section of the same.

The letter A designates a coke oven or kiln, which in the present instance is of the wellkno-wn dome or arched shape, and is constructed of brick, fire-clay, metal, or other refractory or fire-proof material. The oven is provided with the customary side door, a, for removing the coke, and with a top opening, b, for charging it with coal through a hopper located thereat. It also has achimney for theescape of the gases and products of combustion. A series of tubes, B, traversing the interior of the oven and arranged in different horizontal planes, and crossing each other or running in various directions, are provided with numerous perforations, O, on their upper sides, as is shown more fully in Fig. 2. These tubes ex- (No model.)

tend through the walls of the oven and are open at each end, being in communication at one side of the oven with a water-supply tank or reservoir, and at the other side with a wastewater vessel. Hence it will be manifest that a current of water can circulate through the tubes, provision being made, however, for preventing the tubes from being entirely filled with water. The location of the water-tubes in the mass of burning coal will cause the water contained therein to be converted into steam, which escapes through the top openings in the tubes, and is decomposed by the products of combustion, or, in other words, is caused to furnish hydrogen and oxygen, that combine with the sulphur in the coal and serve to neutralize or carry off the sulphur, leaving the resultant coke or carbonaceous matter in a better condition for use in iron and other furnaces than coke burned in the ordinary manner; By virtue of the fact that the tubes are only partly filled with water a stratum or current of atmosphericair can be present therein,

the oxygen from which acts in conjunction I am aware that itis quite common to effect the desulphurization of mineral coal in cokingovens by means of steam or air introduced either at the bottom or top of the coking-chamher; and I am also aware that water has been admitted into the top of a coking-chamber for generating steam by contact with the incaiv descent mass of coal.

I am also aware that the so-ealled watergrates of metallurgical furnaces have been made open, so as to permit the vaporization of the water by the superimposed bed of burning fuel and assist in the desulphurization of the latter.

too"

I disclaim all broadness of invention and ersing said chamber at different elevations or confine myself to the special arrangement of planes, and crossing each other, for conveying pipes herein shown, whereby I prodncea most water for vaporizing purposes through the thorough desulphurization of coal in a cokingmass of burning coal contained in said chain- [5 5 chamber in averysimple and expeditious manher, as and for the purpose set forth.

ner. In testimony whereof I affix my signature Having thus fully described my invention, in presence of two Witnesses. what I claim as new, and desire to secure by \VILLIAM B. SMITH. Letters Patent, is- Witnesses: no The combination, with a coking-chamber, of J. 'l. BURTON,

a series of perforated horizontal tubes, B, trav JAMES It. SMITH. 

